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PatchSiren cyber security CVE debrief

CVE-2026-32218 Microsoft CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-04-14T16:57:39.560Z and has not been modified since then. The NVD entry is currently Medium. This Windows Kernel Information Disclosure Vulnerability allows local attackers to disclose sensitive information. Defenders responsible for Windows 10 and Windows 11 systems, especially those with local access, should verify exposure and apply patches from Microsoft. The vulnerability affects various versions of Windows 10, Windows 11, and Windows Server. Microsoft has provided a patch for this vulnerability.

Vendor
Microsoft
Product
Windows 10 Version 21H2
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-14
Original CVE updated
2026-10-15
Advisory published
2026-04-14
Advisory updated
2026-10-15

Who should care

Defenders responsible for Windows 10 and Windows 11 systems, especially those with local access, should verify exposure and apply patches from Microsoft.

Why it matters

CVE-2026-32218 is a Windows Kernel Information Disclosure Vulnerability that allows local attackers to disclose sensitive information. Defenders should verify exposure in Windows 10 and Windows 11 systems and apply patches from Microsoft.

  • Local attackers may be able to disclose sensitive information
  • Defenders need to verify exposure in Windows 10 and Windows 11 systems
  • Patching is required to mitigate the vulnerability

Technical summary

The Windows Kernel Information Disclosure Vulnerability allows an authorized attacker to disclose information locally. The vulnerability affects various versions of Windows 10, Windows 11, and Windows Server. This vulnerability can be exploited by local attackers to gain unauthorized access to sensitive information. Defenders should prioritize verifying exposure in Windows 10 and Windows 11 systems, especially those with local access, and apply patches from Microsoft.

Defensive priority

Defenders should prioritize verifying exposure in Windows 10 and Windows 11 systems, especially those with local access, and apply patches from Microsoft.

Recommended defensive actions

  • Verify exposure in Windows 10 and Windows 11 systems, especially those with local access
  • Apply patches from Microsoft
  • Monitor system logs for potential information disclosure

Evidence notes

The CVE record and NVD entry provide details on the Windows Kernel Information Disclosure Vulnerability. Microsoft has provided a patch for this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-32218 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-32218

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-32218 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-32218

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Windows Kernel Information Disclosure Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32218.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32218

    Supplemental source - vendor-advisory, patch

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.